Patents by Inventor Stefan NYQVIST

Stefan NYQVIST has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11668067
    Abstract: A includes a control arm comprising a first link and a second link, a lift arm articulately connected to the first link by a first joint and a first actuating means articulately connected to the first link by the second joint. The second link and the lift arm are adapted to permit a pivotal connection with a loading means by a third joint and a fourth joint, wherein the lift arm is adapted to lift and lower the loading means and the first actuating means is adapted for actuating the control arm, by acting on the first link in at least a direction from the first actuating means, to achieve a rotational movement of the loading means around said fourth joint, when the loading means is connected to the control arm and to the lift arm. During action of the first actuating means on the first link in the direction from the first actuating means a decrease of a distance between the second joint and the third joint is achieved.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: June 6, 2023
    Assignee: EPIROC ROCK DRILLS AKTIEBOLAG
    Inventor: Stefan Nyqvist
  • Publication number: 20200240104
    Abstract: A includes a control arm comprising a first link and a second link, a lift arm articulately connected to the first link by a first joint and a first actuating means articulately connected to the first link by the second joint. The second link and the lift arm are adapted to permit a pivotal connection with a loading means by a third joint and a fourth joint, wherein the lift arm is adapted to lift and lower the loading means and the first actuating means is adapted for actuating the control arm, by acting on the first link in at least a direction from the first actuating means, to achieve a rotational movement of the loading means around said fourth joint, when the loading means is connected to the control arm and to the lift arm. During action of the first actuating means on the first link in the direction from the first actuating means a decrease of a distance between the second joint and the third joint is achieved.
    Type: Application
    Filed: October 23, 2018
    Publication date: July 30, 2020
    Applicant: EPIROC ROCK DRILLS AKTIEBOLAG
    Inventor: Stefan NYQVIST